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Analog Devices Inc. OP37-001C
- Part No.:
- OP37-001C
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- Die
- Datasheet:
-
OP37-001C.pdf
- Description:
- DIE ON FILM FRAME
- Quantity:
- Payment:
- Shipping:
Inventory:1,328
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Product details
Overview
OP37-001C from Maxim Integrated is a high-speed, precision operational amplifier with 63 MHz gain-bandwidth product, 17 V/µs slew rate, and 10 µV max input offset voltage, used in precision instrumentation signal conditioning and analog front-end stages.
For engineers reviewing the OP37-001C datasheet, OP37-001C pinout, OP37-001C application, or OP37-001C equivalent, key selection considerations include its legacy bipolar process, limited new-design support status, guaranteed AC performance at ±15 V supply, and compatibility with standard 8-pin DIP layouts.
Technical Context
The OP37-001C employs a proprietary high-speed bipolar process optimized for low noise and fast settling, delivering 2.5 µs settling time to 0.01% for 10 V step inputs. It features internal compensation for unity-gain stability and operates over ±4 V to ±18 V supply range.
Input stage uses matched PNP transistors enabling low input bias current (10 nA max) and low input offset drift (0.2 µV/°C), while output drives ±10 mA into 600 Ω loads with minimal phase reversal risk under overload.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 63 MHz - supports stable closed-loop operation up to 100 kHz with ≥40 dB gain |
| Slew Rate | 17 V/µs - enables full-power bandwidth of ~2.7 MHz at ±10 V output swing |
| Input Offset Voltage | 10 µV max - reduces DC error in precision integrators and low-level sensor amplifiers |
| Supply Voltage Range | ±4 V to ±18 V - compatible with legacy industrial ±15 V rails and modern ±5 V systems |
| Input Bias Current | 10 nA max - minimizes voltage drop across high-impedance source networks |
| Settling Time | 2.5 µs to 0.01% - meets requirements for 16-bit DAC buffer and data acquisition front-ends |
Pinout & Package
OP37-001C is supplied in an 8-pin plastic dual in-line package (PDIP) with standard op-amp pinout and 0.3-inch body width.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null | Connects to external potentiometer for manual input offset trimming |
| 2 | Inverting Input | Differential input node accepting feedback network for closed-loop gain control |
| 3 | Non-Inverting Input | Differential input node referenced to system ground or common-mode voltage |
| 4 | V– | Negative supply rail connection; must be decoupled locally to minimize noise coupling |
| 5 | Offset Null | Second terminal of external nulling potentiometer; paired with Pin 1 |
| 6 | Output | Class-A/B output stage capable of ±10 mA drive into 600 Ω |
| 7 | V+ | Positive supply rail connection; requires local 0.1 µF ceramic bypass capacitor |
| 8 | NC | No internal connection; left unconnected per datasheet recommendation |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable | Internally compensated for stable operation at gain ≥ 1 without external components |
| Low input offset drift | 0.2 µV/°C ensures <1 µV total drift over 0°C to 70°C operating range |
| High open-loop gain | 2.5 million (128 dB) maintains accuracy in high-precision closed-loop configurations |
| Low input noise voltage | 3.5 nV/√Hz at 10 kHz enables clean amplification of microvolt-level sensor signals |
Applications
| Medical Instrumentation | Test & Measurement Equipment |
|---|---|
Use Scenario: Amplifying low-amplitude ECG and EEG bio-potential signals in portable diagnostic devices. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with ultra-low offset and drift to preserve signal fidelity. Use Value: 10 µV max input offset and 0.2 µV/°C drift prevent baseline wander and calibration drift over temperature. | Use Scenario: Buffering and scaling outputs from high-resolution DACs in automated test systems. IC Role / Device Role / Timing Role: Unity-gain stable output driver ensuring monotonicity and settling within 2.5 µs. Use Value: 17 V/µs slew rate and 2.5 µs settling enable accurate reproduction of 16-bit DAC steps at 100 kSPS. |
| Industrial Process Control | Legacy Analog Signal Conditioning |
Use Scenario: Isolating and amplifying 4–20 mA loop sensor outputs in PLC analog input modules. IC Role / Device Role / Timing Role: High-input-impedance differential receiver with rail-to-rail output swing capability. Use Value: 10 nA max input bias current avoids loading errors on high-impedance current-sense resistors. | Use Scenario: Replacing failed OP37 units in field-deployed aerospace avionics and military comms equipment. IC Role / Device Role / Timing Role: Drop-in functional replacement preserving original schematic and layout. Use Value: Identical pinout and electrical behavior allows direct substitution without board rework. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP27GP | Higher 3.8 µV max input offset, same 63 MHz GBW, but wider ±22 V supply range | Better suited for high-voltage industrial sensors requiring extended common-mode range | Select OP27GP when supply exceeds ±18 V or offset tolerance >10 µV is acceptable |
| AD827JRZ | Lower 12 V/µs slew rate, 50 MHz GBW, and 25 µV max offset; SOIC-8 package only | Limited to lower-speed precision applications where DIP footprint is not required | Choose AD827JRZ for surface-mount designs prioritizing board space over ultimate speed and offset |
Compared with OP37-001C, OP27GP offers higher supply tolerance at the cost of slightly degraded DC precision, while AD827JRZ trades speed and offset performance for compact packaging-neither is pin-compatible, and both require layout review for replacement.
Availability
OP37-001C is available at Aetrix Electronics and suitable for medical instrumentation, test & measurement equipment, and industrial process control requiring stable component supply despite its Not Recommended for New Designs status.
Supply support for OP37-001C includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated is a U.S.-based semiconductor company specializing in analog and mixed-signal ICs for power, interface, sensing, and timing applications.
The OP37-001C belongs to Maxim's legacy precision op-amp family designed for high-fidelity analog signal processing in demanding instrumentation and control systems.
FAQ
Is OP37-001C still in production?
No, OP37-001C is not in active production. Maxim has discontinued manufacturing due to obsolescence of the external wafer foundry process. Aetrix Electronics supplies remaining inventory with full traceability and supports legacy design continuity for existing programs using OP37-001C.
What does "Not Recommended for New Designs" mean for OP37-001C?
"Not Recommended for New Designs" indicates Maxim no longer endorses OP37-001C for newly initiated projects due to long-term supply uncertainty. However, OP37-001C remains fully supported for existing designs, with datasheets, application notes, and technical assistance still available from Maxim.
Can OP37-001C be replaced with OP27GP without circuit changes?
OP37-001C and OP27GP share identical 8-pin PDIP pinout and similar AC performance, but OP27GP has different offset nulling resistor values and higher max input offset (3.8 µV vs. 10 µV). Minor recalibration may be needed; full functional validation is required before substituting OP37-001C with OP27GP.
Does OP37-001C support single-supply operation?
OP37-001C is specified for dual-supply operation from ±4 V to ±18 V. While it can operate with asymmetric supplies (e.g., +15 V and –5 V), it is not characterized for true single-supply use (e.g., 0 V and +15 V), and input common-mode range does not extend to the negative rail-use OP37-001C only in dual-rail configurations.
Where can I find the official OP37-001C datasheet?
The official OP37-001C datasheet is hosted on Maxim Integrated's website at maxim-ic.com. Search for "OP37" in the product database to access the QuickView datasheet, which includes absolute maximum ratings, typical performance curves, and package drawings for OP37-001C.
OP37-001C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- Die
- Packaging:
- Bulk
- Product Status:
- Not For New Designs
- Amplifier Type:
- Instrumentation
- Number of Circuits:
- 1
- Output Type:
- Push-Pull
- Slew Rate:
- 17V/µs
- Gain Bandwidth Product:
- 63 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- -
- Voltage - Input Offset:
- -
- Current - Supply:
- -
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- -
- Voltage - Supply Span (Max):
- 22 V
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Die
OP37-001C FAQ
1.How can I place an order for OP37-001C through Aetrix?
Please submit a Request for Quotation (RFQ) for OP37-001C on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for OP37-001C reliable?
The price and inventory of OP37-001C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP37-001C is usually 5 days.
3.What payment methods are accepted for OP37-001C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP37-001C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP37-001C?
OP37-001C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP37-001C order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for OP37-001C?
For technical support, including OP37-001C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP37-001C requirements.
6.How does Aetrix verify that OP37-001C is sourced from the original manufacturer or authorized distributors?
All OP37-001C products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that OP37-001C meets industry standards.
7.What is the process for return or replacement of OP37-001C?
All OP37-001C units undergo pre-shipment inspection (PSI). If there is an issue with OP37-001C, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The OP37-001C part is unused and in its original packaging.
Return procedure for OP37-001C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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